Improvement in fan attachments for rocking-chairs



tintin( ttiea niet can Letters PatentvNo. 109,744, dated November 29,1870.

IMPROVEMENT l-N FAN.. ATTACHMENTS FORiROCKlNG-CHAIRS.

The Schedule referred to in these Letters Patent and making part of thesame.

We, RUDOLPH KNAFFL, M. D., of Nashville, Davidson county, und THEoDoREM. SoHLEIEn, of Knoxville, KnoX county/Tennessee, have invented anImproved Fan Attachment for Rocking-Chairs, of which the following is aspecification.

Nature a-mlObjects of the Invention.

Our invention consists of a mode of attaching to a rocking-chair andoperating a fan so that the motion of the formertransmits areciprocating rotary movement to the latter, which may be placed alittle above and in front of' the person in the chair.

-Dcscrfipt-ion of the Accompanying Drawing.-

The drawing represents a perspective View.

General Description.

. A, the rocking-chair, may bc of the usual Akind.

Our invention does not demand any peculiar construction of the chairproper.

In the illust-ration the fanattachinent is shownas connected to thechair at three points, namely, the middle, the back B, and the ends of'the rockers C C.

IVe consider this a convenient mode of 'attaching the device, but donotlimit ourselves to this or any other peculiar mode.

D is a post, which, in the illustration, is shown as bifnrcated at itslower portion and tubular at the lremainder of its length. y

The feet d d ot the post are secu-red, by screws,

clamps, sockets, or otherwise, to the rear ends of the rockers C G, andthe stem of the post D is secured, by the described or anysufticieut'ineans', to the back B ot' the chair.

At the upper end of the post D is a tubular branch or arm, E, which maybe articulated with the post orbe permanent at a given angle.

0n the end ofthe arm E is the axis f ofthe fan F. Ihc rotaryI'ecipmcation of the fau is produced by two springs, which may be ofIndia rubber or wire coils, or they maybe formed of single leaves orbars of wood or met-al.

On the axis f ot' the fan l is a roller or drum, H, over which passes acord, l.

One end of the cord connects with theupper spring K, which is fastenedto the arm E at k ,f and the other cnd of the cord I, after traversingthe tubular arm E and a portion of the tubular stem D, is united to theupperend ot' the vertical rod L, whose lower end is kept constant uponthe fioor by means ofthe spring M.

I stem may be employed.

This is' a matter of detail, land we do not confine ourselves to anyspecific detail in this respect.

Operation.

Then the, person in the rocking-chair tilts it backward, the rod L isthrust upward in the stem D, slacking the cord I, and permitting thecontraction of the upper spring K. v

The action of the latter is to draw upon the slackened cord, whosemotion over the roller H rotates the i'an in one direction.v

As the chair is tilted forward the dominant spring M comes into piay anddraws down the rod L, pulling on the cord I, elongating the spring K,and rotating the fan in a direction the reverse ot' the former motion,by the transit of the cord over the roller H.V

IVhen the rod L is thrust upward the spring K is allowed to act anddraws the cord in one. direction. When the rod L is allowed to descendthe strong spring M becomes dominant and draws the cord in the otherdirection, eiongating the spring K.

The elbow at the junction of the stem D and arm E may be jointedso as toadjust the height of the fan to snit the convenience ofthe person in thechair.-

We claim as our invention- The combination of the fan-operating parts,consisting of rod L, spring M, cord I, and spring K, communicatingbetween a relatively-fixed point on the stem D Evand the door, withwhich the foot ot' the, rod is held in constant contact by the dominantspring M, snbstantiaily as shown and described.

Dn. RUDOLPH l NAFFL.

Witnessesa's to It. KNAFFL, M. D.,

H. ALBES,

JOHN RUHM.

THEODORE M. 'SGHLEIER Witnesses as 4to T. M. SCHLEIER,

WM. H. BRERETON, Jr.,

EDWARD H. KNIGHT.

SGHLEIER, OF

